Published April 2012 | Version v1
Journal article Metadata-only

Switchable Ferroelectric Diode Effect and Piezoelectric Properties of Bi0.9La0.1FeO3 Ceramics

Creators

  • 1. Department of Applied Physics, Institute of Advanced Materials Physics, Tianjin Key Laboratory of Low-Dimensional Materials Physics and Preparing Technology, Faculty of Science, Tianjin University, Tianjin 300072 (China)
  • 2. College of Physics and Electronic Information Science, Tianjin Normal University, Tianjin 300387 (China)
  • 3. Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190 (China)
  • 4. Department of Information Materials Science and Engineering, Guilin University of Electronic Technology, Guilin 541004 (China)

Description

Multiferroic ceramics Bi0.9La0.1FeO3 are synthesized by solid-state reactions and sintered at various temperatures. The rhombohedral structure with the space group R3c is confirmed by means of x-ray diffraction, and their multiferroic properties are investigated. Bi0.9La0.1FeO3 ceramics sintered at 880°C are found to have the lowest leakage current density and the largest saturated polarization among all the samples. A diode-like current-voltage hysteresis that could be switched by an external voltage is observed in the Bi0.9La0.1FeO3 ceramics. A typical 'butterfly' shaped strain-versus-voltage curve is shown with a maximum strain of 0.09% at 7kV. Room-temperature magnetization exhibits a hysteresis loop, indicating that the modulation of the spin structure of BiFeO3 has been suppressed. (condensed matter: electronic structure, electrical, magnetic, and optical properties)

Availability note (English)

Available from http://dx.doi.org/10.1088/0256-307X/29/4/047701

Additional details

Identifiers

DOI
10.1088/0256-307X/29/4/047701;

Publishing Information

Journal Title
Chinese Physics Letters
Journal Volume
29
Journal Issue
4
Journal Page Range
[4 p.]
ISSN
0256-307X
CODEN
CPLEEU

INIS

Country of Publication
China
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
45004004
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Descriptors DEI
BISMUTH COMPOUNDS; CERAMICS; FERRITES; FERROELECTRIC MATERIALS; HYSTERESIS; LANTHANUM COMPOUNDS; LEAKAGE CURRENT; MAGNETIZATION; PIEZOELECTRICITY; POLARIZATION; SPIN; STRAINS; SWITCHES; TEMPERATURE RANGE 0273-0400 K; TRIGONAL LATTICES; X-RAY DIFFRACTION
Descriptors DEC
ANGULAR MOMENTUM; COHERENT SCATTERING; CRYSTAL LATTICES; CRYSTAL STRUCTURE; CURRENTS; DIELECTRIC MATERIALS; DIFFRACTION; ELECTRIC CURRENTS; ELECTRICAL EQUIPMENT; ELECTRICITY; EQUIPMENT; FERRIMAGNETIC MATERIALS; IRON COMPOUNDS; MAGNETIC MATERIALS; MATERIALS; OXYGEN COMPOUNDS; PARTICLE PROPERTIES; RARE EARTH COMPOUNDS; SCATTERING; TEMPERATURE RANGE; TRANSITION ELEMENT COMPOUNDS